A BMW 507 boat? Yup.

What a story. It was an experiment in the late 50s to make a speedboat with a BMW 507 engine and design. A unique beauty. But then the boat disappeared for decades, until a young guy heard of the boad, found and restored it.
The BMW 507 is a very rare BMW roadster, only around 250 cars have been produced in the 1950s. And this is the only BMW 507 boat.